QJ(50-80)说明书(中英文)

QJ系列气体继电器
QJ Series of Gas Relay
安装使用说明书
Operating Instruction Manual
沈 阳 科 奇 电 器 有 限 公 司
SHENYANG KEQI ELECTRICAL EQUIPMENT CO.,LTD
地址：沈阳市沈北新区辉山经济开发区辉山大街123-15 邮编Postcode：110164 Add: No.123.huishan street,HuiShan New&High Techagricul Development
电话Tel：（024）88082828传真Fax：（024）88082929 E-mail:kqdq@
一、产品简述
气体继电器是油浸式变压器及有载分接开关所用的一种保护装置。

气体继电器安装在变压器箱盖与油柜的联管上，可装导气管，实现地面排气和取样。

在变压器内部故障而使油分接产生气体或造成油流冲动时，使继电器的接点动作，以接通指定的控制回路，并及时发出信号或自动切除变压器。

二、型号说明
标注实例：QJ1-80A-10表示第1次设计的管路通径为Φ80mm，带防雨罩及取气盒导管长度为10000mm 的气体继电器. 注：设计序号后带“G”表示改进型产品
三、使用条件
1.允许工作温度：-30℃~95℃
2.安装方式：继电器管路轴线应与变压器箱盖平行，允许通往储油柜的一端稍高，但其轴线与水平面的倾斜度不超过4%。

四、结构与性能参数
QJ 系列继电器结构基本相同。

本继电器机芯结构如图1所示，机芯上部由1气塞、2气塞螺母、3探针、4封塞、5开口杯（浮子）、6重锤、7挡板、8磁铁、9接线端子、10弹簧、11调节杆、12干簧接点组成动作于跳闸的流速装置。

盖上的气塞1是供安装时排气以及运行中抽取故障气体之用。

探针3是供检查跳闸机构的灵活性和可靠性之用。

123456
78
12
1110
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图1
QJ 设计序号气体继电器
管路通径 (mm)A-带防雨罩、取气盒导气管长度（1/1000）mm
五、工作原理
继电器正常运行时其内部充满变压器油，浮杯（浮子）处于图1所示的上倾位置。

当变压器内部出现轻微故障时，变压器油由于分解而产生的气体聚集在继电器上部的气室内，迫使其油面下降，浮杯5随之下降到一定位置，其上的磁铁8使干簧接点12吸合，接通信号回路，发出报警信号。

当变压器内部发生严重故障时，邮箱内压力瞬时升高，将会出现油的涌浪，冲动挡板7，当挡板旋转到某一限定位置时，其上的磁铁8使干簧接点12吸合，接通跳闸回路，不经预先报警而直接切断变压器电源，从而起到保护变压器的作用。

六、主要技术参数（见表1、表2）
抗震能力：当震动频率（正弦波）4-20HZ ，加速度为4g ，继电器不误动。

防护等级：继电器防喷水等级为1PX5。

注：产品本身具备防雨功能。

特殊情况增加防雨罩
需另购。

密封性能：继电器内充满变压器油在常温下加压200KPa,持续20min 无渗漏。

-表1 -接点容量
工作电压
工作电流
AC: 220V-240V 0.3 A ~1A cos Φ≤0.6 DC: 110V-240V
0.3 A ~1A
S ≤0.005S
-表2 -技术参数
产品型号 管路直径（mm ）
积聚气体数量（ml ）
油速整定范围（m/s ）
QJ1-50 Φ50 250~300 0.6~1.2 QJ1-80 Φ80 250~300 0.7~1.5 QJ3-50 Φ50 250~300 0.6~1.2 QJ3-80 Φ80 250~300 0.7~1.5 QJ4-50 Φ50 250~300 0.6~1.2 QJ4（13
）-80 Φ80 250~300 0.7~1.5 QJ5-80 Φ80 250~300 0.7~1.5 QJ12-80 Φ80 250~300 0.7~1.5 QJ13-80 Φ80 250~300 0.7~1.5 QJ14-80
Φ80 250~300 0.7~1.5
七、外形及安装尺寸图(见图2、表3)
图2
-表3- 安装尺寸产品型号 D0
H
L D
A
d B 质量（kg）
QJ1-50 Ф50 220 160 Ф130 120M12100 10
QJ1-80 Ф80 220 160 Ф130 120M12100 9
QJ4（13）-50 Ф50 215 185 Ф125 125Ф14100 11
QJ4-80 Ф80 235 185 Ф160 160Ф18
100 13
QJ3，QJ5，QJ12-80 Ф80 235 185 Ф160 160Ф18100 13 QJ13，QJ14-80 Ф80 235 185 Ф160 160Ф18100 13
八、安装及调试
8.1安装
1、新出厂的继电器安装使用前必须先取出继电器机芯，拆除运输固定用的绑扎带。

并检查
所有紧固件是否松动，浮杯（浮子）及挡板是否动作灵活，接点是否可靠开闭。

2、继电器应安装在油浸式变压器的油箱与储油柜质检的联管上，联管的内径应与继电器的
管路通径（口径）一致，继电器上的箭头必须指向储油柜。

允许储油柜端稍高，但联管的轴线与水平面的倾斜度不得超过4%，或采用安装倾斜连气管的方法，使变压器内部的气体顺利进入继电器内。

3、为方便运行现场对气体继电器的检修，其安装位置应保证继电器机芯能顺利的从壳体中
取出。

QJ-50\80型取出高度为150mm。

4、安装完毕后，打开连接管上的油阀，拧下气塞防尘罩用手拧松气塞螺母2（注意不将螺
母拧下来），让空气排出，直到气嘴逸油位置，再拧紧螺母。

5、如需接引导气盒时，在没打开油阀之前，将继电器上盖上的封塞螺钉4拧下，然后把接
线座3拧上，再将导气盒6用螺母4，胶垫5接到引座3上（见图2、图3），接导气盒后继电器上的气塞可正常使用。

至
导
气
盒
图3DQ-2型导气盒连接示意图
6、电气接线如图4所示，继电器接线可按接线图；既可采用串联接法，也可以采用并联接
法，还可以单独使用，用户可根据不同要求接线。

注：接点1、2为信号输出接点 ， 接点3、4、5为带公共点双路跳闸接点，一个接线孔
图4-1QJ1型、QJ4型接线示意图
注：接点1、2为信号输出接点 ， 接点3、4、5、6为双路跳闸接点，两个接线孔
图4-2 QJ3型、QJ5型、QJ12型接线示意图
注：接点1、2 , 3 、4 为两对独立信号输出接点，
接点5、6，7、8为两对独立信号跳闸接点，两个接线孔
图4-3 QJ13型、QJ14型接线示意图
8.2调试
QJ系列继电器是油浸式变压器的重要保护装置，因此运行部门均有特殊规定，诸如必须经检验部门调试、整定及出具证明后方可以投入使用，故调试和油速整定工作应按有关规定执行。

8.3气体容积量的调整
改变干簧接点的位置，可以调节信号接点动作的气体容积，干簧接点上移时气体容积量减少，干簧接点下移时气体容量增大。

调整后应拧紧锁牢螺钉。

8.4油速调整
调节与弹簧连接的调节杆可改变挡板弹簧的拉力，即可改变跳闸接点动作的油速（继电器出厂时已整定好，其数值见出厂检验报告），调整后应锁牢螺母。

动作油速整定工作应由专业人员在专用流速校验设备上进行。

8.5挡板旋转角度调整
调节止挡螺钉可以改变挡板的旋转角，即可调节磁铁与干簧接点间距离（0.5~1.0mm），借以保证干簧接点可靠开闭。

从气嘴1处打入气体，可检查“信号”接点的动作可靠性。

将探针罩拧下，按动探针2，可以检查“跳闸”接点动作的可靠性。

在运行中采集气样时，首先拧下气塞防尘罩，然后将气样瓶胶管插在气嘴上，再拧松气塞螺母，气样即可充入瓶内，采样后再拧紧螺母回装防尘罩。

九、保养维修
继电器应每年进行一次外观检查及信号回路的可靠性和跳闸回路的可靠性检查。

已运行的继电器应每两年开盖一次，进行内部结构和动作可靠性检查。

已运行的继电器应每五年进行一次工频耐压试验。

十、注意事项
磁铁不能剧烈震动，也不能放在强磁场及温度超过100℃和低于-40℃的环境中，以防退磁。

不要随意拆卸干簧接点，特别是根部引线不得任意弯拆，以免损坏。

十一、承诺
用户单位在使用本产品时要按照说明书进行操作；本产品在安装之日起18个月内，并在公司发货给用户不超过24个月的期限内，我公司对产品实行三包。

1. summary
Main Application
Gas relay is a kind of protective devices used for oil-immersed transformers and oil-immersed on Load tap changers.Gas relay(hereinafter referred to as the relay) is installed in the pipe connector Between a transformer cover and a conservator and may be fitted with an air duct box to real-ize ground exhaustion and sampling. The relay is contacts act to make connect with control loop
designated and signal in time or automatically cut off the transformer in the case of oil decomposed and gasified or oil flow implusion caused by internal failure of the transformer.
2. Model
3.Service Conditions
3.1.Permissible operating temperatures:-30~+95
3.2Assembling method: the relayis pipe axis should be parallel to the transformer case cover,
And it is allowed for the end leading to the conservator id higher, however the inclination between The axis and level surface may not exceed 4%.
4.Structure & Operating Principle
Structure of the Gas Relay
QJ series of relays are basically in similar structure.the relay’ s core structure is shown in Fig.1, and the relay’ supper core consists of gas lock 1,gas lock nut 2,probe 3, blocking 4, snap ring(float)5, weights drop 6, guard board7, magnet 8, connecting terminal9, spring 10, regulating rod11, and dry reed contact12, forming a flow device that acts on tripping. Gas lock 1 in the cover is used for exhaustion in the case of assembly and extracting gas out of order. Probe 3 is used to check flexibility and reliability of the tripping mechanism.
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QJ
Serial number designed Gas relay
Pipe diameter (nominal valve) mm
A-with waterproof covers
and gas-collecting box
Fig.1
5.Operating Principle of Gas Relay
In the case of normal operation it is full of transformer oil inside the relay．The snap ring(float) is
in inclined position upward as shown in Fig．1．Gas produced by the transformer oil decomposed gathers in upper gas chamber of the relay and forces the oil surface to reduce，snap ring 5 reduces
to a certain position together with it，and magnet 8 thereon makes dry reed contact 12 suck to connect with the signal circuit to give alarm signal in the case of slight circuit to give alarm signal.In the case of serious failure inside the transrormer the pressure in the oil tank rises instantaneously,oil surging occurs and impulses guard board7,and magnet 8 thereon makes sry
reed contace 12 suck to connect with the tripping circuit to give alarm signal and cut off the teansformer.
6.Main Technical Parameters (see List 1, List 2)
6.1 Shock resistance : if frequency of shock (sine wave) is 4 to 2o Hz and acceleration 4g there
will be no accidental operation of the relay.
6.2 Level of protection:the relay is at 1P×5 level of water spray prevention.Note:the product is provided with the function of flashing.In special cases,to add rain screen needs to be purchased additionally.
6.3 Sealing property:there is no leakage to pressurize 200Kpa for 20 minutes at normal temperature when it is full of transform oil in the relay.
-List 1(Contact Rating)
Operating voltage Working current
AC：220V-250V 0.3A～1A cos
Φ≤0.6 DC：110V-240V 0.3A～1A S
≤0.005S
- List 2 (Technical Parameters)
Model Pipe
diameter（mm）Accumulative gas quantity
（ml）
Oil speed setting range
（m/s）
QJ1-50 Φ50 250~300 0.6~1.2 QJ1-80 Φ80 250~300 0.7~1.5 QJ3-50 Φ50 250~300 0.6~1.2 QJ3-80 Φ80 250~300 0.7~1.5 QJ4（13）-50 Φ50 250~300 0.6~1.2 QJ4-80 Φ80 250~300 0.7~1.5 QJ5-80 Φ80 250~300 0.7~1.5 QJ12-80 Φ80 250~300 0.7~1.5 QJ13-80 Φ80 250~300 0.7~1.5 QJ14-80 Φ80 250~300 0.7~1.5
7.External & Installation Dimensions(see Fig.2 , List 3)
External appearance and dimensions of QJ-50 and 80 are shown in Fig.2,and please
refer to List 3 for the installation dimensions.
Fig.2
- List 3 (Installation Dimensions)
Model D0 H L D A d B Weight（kg）
QJ1-50 Ф50 220 160Ф130 120M12100 10
QJ1-80 Ф80 220 160Ф130 120M12100 9
QJ4（13）-50 Ф50 215 185Ф125 125Ф14100 11 QJ4-80 Ф80 235 185Ф160 160Ф18100 13 QJ3（QJ12）-80 Ф80 235 185Ф160 160Ф18100 13 QJ13-80 Ф80 235 185Ф160 160Ф18100 13 QJ14-80 Ф80 235 185Ф160 160Ф18100 13
8.Installation & Debugging
8.1．Relay Installation
8.1.1. The relay core must be taken out and the bandage used to fix in transit be disassembled berore installation of the relay leaving factory.Check all of the fastenings if they become flexible,
if the snap ring(float) and guard board move flexibly,and if the contacts open and close reliably.
8.1.2．The relay should be installed in the pipe connector between an oil-immersed transformer’s
oil tank and a conservator.Internal diameter of the pipe connector should be the same with the relay’s pipe diameter(caliber),and the arrow on the relay must be directed to the conservator. It is allowed that the conservator end is higher however the degree of inclination may not exceed 4% between the pipe connector’s axis and level surface or the method for installation of inclined air fitting pipe may be used so that the gas inside the taansformer can smoothly enter into the relay.
8.1.3． In order to be converient to overhaul the gas relay at site,its installation site needs to guarantee that the relay’s core may be smoothly taken out of the case.The height for QJ4-25 type
to be taken out is 130mm, and that for QJ4-50 and 80 types 150mm.
8.1.4 .Open the valve in the connecting pipe, take down the gas lock dust cover, and unscrew gas lock nut 2 by hand (not to take down the nut) after installation to exhaust air till the air nozzle’s oil spill, and then screw down the nut.
8.1.5．Take down blocking screw 4 in the cover of the relay before open the oil valve if it is necessary to connect with the air dust box, then srew on joint chair 3, and then connect conduct pipe 6 to joint chair 3 with nut 4 and cushion 5 (please refer to Fig.2 and 3). The gas block in the relay can be normally used after connected with the air duct box.
to gas collecting box
Fig.3
8.1.6 The electric connection is show in Fig.4.The relay’s connection may be made in series or in
parallel according to the connection diagram, it may be separately used also,
and users can make wire connection according to different requirements. Screw out press line nut 13 in the case of threading, piece the cable into the wire connection from the nut hole through rubber ring 14 and screw down nut 13 after connection so that the rubber ring clips the cable and buddle them firmly with adhesive tape to prevent from water inflow.
1,2:Signal ; 3,4,5:Tripping
Fig.4-1 QJ1\QJ4
1,2:Signal; 3,4,5,6:Tripping
Fig.4-2 QJ3\QJ5\ QJ12
1,2,3,4:Signal ; 5,6,7,8:Tripping
Fig.4-3 QJ13\ QJ14
8.2 Debugging
QJ series of relays is an important protective device of oil-immersed transformer so there are special provisions stated for an operational unit, for example it may be only brought into service after an inspection department’s debugging, examination, and issuing cofirming documentation,
and accordingly works on debugging and oil speed examination should be done according to pertinent regulations.
8.3.Gas Volumetric Quantity Adjustment
To change the dry reed contact’s position may adjust volumetric quantity the action of signal contact, volumetric volume may reduce when the dry reed contact moves upwards and may increase when the dry reed contact moves downwards. The screwd down and locked firmly after adjustmen.
8.4. Oil Speed Adjustmen
To adjust the regulating rod connected with the spring may change the pulling force of the baffle board spring, namely the acting oil speed shall be done with a special flow rate checking facilty by professionals.
8.5. Adjustment of the Ballle Baffle Board’s Angle of Rotation
8.5.1.To adjust the backstop screw may change the baffle board’s angle of rotation, namely the distance (0.5~1.0mm) between the magent and dry reed contact may be adjusted to ensure that the dry reed contact may be opened and closed reliably.
8.5.2. To pump gas in from nozzle 1 may cheek action reliability of the “signal” contact.
8.5.3.Take down the probe cover and press probe 2 to check action reliability of the “tripping” contact.
8.5.4 To collect gas sample in service, take down the gas lock dust cover at first, then insert the gas Sample rubber tube in the air nozzle,unscrew the gas lock nut, and the gas sample may be filled in the bottle. Screw down the nut after sampling and fix the dust cover.
9. Maintenance and Several
9.1. An inspection of appearance of the relay should be made and an inspection of reliability of the signal circuit as well as that of the tripping circuit should be made once annually.
9.2. The relay that is in service should be opened up once every two years to made an inspection of its internal structure and action reliability.
9.3.power frequency and breakdown tests of the relay that in service should be done once every five years.
10.Notice
10.1. The magnet may neither be vibrated acutely nor put in strong magnetic field or an environment at temperature higher than 100℃ or lower than -40℃ to prevent from being demagnetized .
10.2. Don not disassemble the dry reed contant at will;espedially dotnot bend the root of the lead to avoid from being damaged.。